52367

Bromure d′hexadécyltriméthylammonium

suitable for ion pair chromatography, LiChropur^™

• Synonyme(s) : Bromure de cétrimonium, Bromure de cétyltriméthylammonium, Bromure de palmityltriméthylammonium, CTAB
• Formule linéaire : CH₃(CH₂)₁₅N(Br)(CH₃)₃
• Numéro CAS: 57-09-0
• Poids moléculaire : 364.45
• UNSPSC Code: 23151817
• NACRES: NB.21
• PubChem Substance ID: 329757827
• EC Number: 200-311-3
• Beilstein/REAXYS Number: 3598189
• MDL number: MFCD00011772

Propriétés

• Nom du produit: Bromure d′hexadécyltriméthylammonium, suitable for ion pair chromatography, LiChropur^™
• InChI key: LZZYPRNAOMGNLH-UHFFFAOYSA-M
• InChI: 1S/C19H42N.BrH/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(2,3)4;/h5-19H2,1-4H3;1H/q+1;/p-1
• SMILES string: [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C
• description: cationic
• assay: ≥99.0% (AT)
• form: powder or crystals
• quality: LiChropur^™
• mol wt: average mol wt 62,000
• aggregation number: 170
• technique(s): ion pair chromatography: suitable
• CMC: 0.92
• mp: 248-251 °C (lit.)
• solubility: H₂O: soluble 36.4 g/L at 20 °C (completely)
• λ: 10 % in methanol
• UV absorption: λ: 240 nm A_max: 0.04; λ: 250 nm A_max: 0.03; λ: 260 nm A_max: 0.02; λ: 500 nm A_max: 0.02
• HLB: 11
• suitability: corresponds to standard for filter test
• Quality Level: 100

Description

Other Notes

Additif pour la chromatographie de paires d′ions[1][2]; réactif de paire d′ions pour la CCM[3][4]

Application

CTAB was used in preparing buffer solutions prepared during the determination of organic acids in port wine capillary zone electrophoresis using indirect UV detection with 2,6-pyridinedicarboxylic acid.[5]

General description

Hexadecyltrimethylammonium bromide (CTAB) is a quaternary ammonium salt containing one long hydrophobic alkyl chain called amphiphile. The hydrophobic ions interact forming discrete aggregates possessing a hydrophobic core and a polar surface, called micelles in polar solution.[6]

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Informations sur la sécurité

• pictograms: GHS08,GHS05,GHS07,GHS09
• signalword: Danger
• hcodes: H302,H315,H318,H335,H373,H410
• pcodes: P273 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 - P314
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Irrit. 2 - STOT RE 2 Oral - STOT SE 3
• target_organs: Gastrointestinal tract, Respiratory system
• Classe de stockage: 11 - Combustible Solids
• wgk: WGK 3
• flash_point_f: 471.2 °F - closed cup
• flash_point_c: 244 °C - closed cup
• ppe: dust mask type N95 (US), Eyeshields, Faceshields, Gloves